Hammer mounted safety device for revolvers

ABSTRACT

A SAFETY DEVICE FOR REVOLVERS FOR THE PREVENTION OF ACCIDENTAL DISCHARGE. THE DEVICE IS MOUNTED DIRECTLY ON THE HAMMER AND IS CONTROLLED BY THE TRIGGER. IT CONSISTS OF A PUSHER, AXIALLY MOVABLE WITHIN A SEAT IN THE HAMMER AND ACTING ON A LEVER WHICH HAS A TERMINAL FINGER WHICH IS CAPABLE OF INTERPOSING ITSELF BETWEEN THE HAMMER AND THE BACK FACE OF THE YOKE OF THE REVOLVER, SO AS TO PREVENT THE FULL DISPLACEMENT OF THE HAMMER AND, CONSEQUENTLY, OF THE FIRING PIN.

Dec. 14, 1971 A -n HAMMER MOUNTED SAFETY DEVICE FOR REVOLVERS Filed Aug. 8. 1969 Unied States Patent 3,626,623 HAMMER MOUNTED SAFETY DEVICE FOR REVOLVERS Aldo Uberti, Piazza Garibaldi 3, Gardone Val Trompia, Italy Filed Aug. 8, 1969, Ser. No. 848,583 Claims priority, appic7a7tgorgltaly, June 25, 1969,

Int. Cl. F41c 17/00, 17/08 US. Cl. 42-66 3 Claims ABSTRACT OF THE DISCLOSURE The present invention relates to safety devices for firearms and more particularly, it relates to safety devices for revolvers or six-shooters.

In the field of revolvers, safety devices are well known for the purpose of preventing the accidental discharge due to dropping of the firearm or due to the carelessness of the operator while handling the pistol or the hammer thereof. However, the known safety devices are often unsatisfactory and not at all fool proof and do not comply with the most stringent safety regulations adopted in many countries.

It is therefore the main object of the present invention to provide for a drum-type revolver which is provided with a safety device mounted directly on the hammer thereof and controlled by the trigger when the latters blocking tooth is seated in a notch suitably provided in the hammers body, so as to arrest the hammer in a safety position.

Briefly stated, the safety device of the invention comprises a pusher which is axially movable within a seat or cavity provided in the body of the hammer. The lower extremity of the pusher projects within the seat of the trigger, while the upper extremity of the pusher acts on a lever pivotable on the hammer and provided with a terminal finger, so as to interpose itself between the hammer and the back face of the yoke of the revolver and, consequently, to prevent the full displacement of the hammer and, therefore, of the firing pin.

From the above it can be seen, therefore, that the main object of the present invention is to provide a revolver wherein the safety device limits the displacement of the hammer and prevents completely the action of the hammer upon the projetcile, this atcion being obviated by the presence in the safety device of a finger interposed between the hammer and the yoke of the revolver.

Another object of the present invention is to provide a revolver wherein the disengagement of the safety device requires a necessary and willful action on the part of the operator upon the hammer itself, so as to bring it into firing position, or at least, into a neutral position corresponding to that in which the drum may be freely rotated for loading.

These and other advantages of the invention will become apparent from the following detailed description thereof and from the accompanying drawings, in which:

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FIG. 1 is a perspective view of the revolver of the invention;

FIG. 2 is a sectional view of the safety device in the operating position; and

FIG. 3 shows the safety device in the position in which the revolver may be fired.

Referring now to the accompanying drawings, reference numeral 1 represents the hammer of the firearm and reference numeral 2 is the spring which actuates the hammer. The trigger 3, cooperating with the hammer 1 has a blocking and, conversely, disengaging tooth 4 which acts within seats with upper notch 5, intermediate notch 6 and lower tappet 7, all of them provided within the hammer 1, so as to have a safety position, a neutral position for loading of the drum and an arming position of the hammer.

Within the body of the hammer there is provided a cavity or longitudinal seat 9, in which there is seated a piston pusher 10' capable of axially-guided displacements, but limited in such displacements by a transversal rod 11 positioned in juxtaposition with an inset 12. The pusher 10 is projecting in its lower portion in correspondence to the upper notch 5 of the hammer, while cooperating in its upper portion with a lever 13 pivotable at 14 and actuated in the back by a spring-loaded piston 15 which is provided within the body of the hammer. The lever 13 terminuates preferably in a front finger 16 which, when at rest, is positioned in correspondence with a frontal depression 17 provided in the hammer 1 and with a stepdown inset 18 provided in the back portion 19 of the yoke of the revolver.

To set the revolver in the safety position, it is sufficient to bring the blocking tooth 4 of the trigger 3 into the seat ofthe upper notch 5 of the hammer 1. This will cause the tooth 4 to have the pusher 10, because of the action of spring 2, effect an axial and upward displacement. The pusher 10, as explained earlier, is located within the hammer 1. To the displacement of pusher 10 corresponds an angular displacement of the lever 13 and the consequent positioning of the respective terminal finger 16 between the back face 19 of the yoke and the front of the hammer; see FIG. 2.

The hammer is now prevented from fully displacing itself toward the yoke of the revolver and the firing pin 8 of the hammer cannot act upon the projectile. Therefore, a complete safety is obtained against any uncontrolled or accidental actions, such as a sudden handling of the hammer, involuntary movements on the part of the operator or a dropping of the firearm.

The disengagement of the safety device for normal operation of the revolver is obtained by effecting an angular displacement of the hammer, so as to bring it into firing position. The pusher 10, freed from the action of the tooth 4 of trigger 3 is moved downwardly, so as to permit the lever 13, due to the action of the springloaded piston 15, to effect an angular displacement and bring the respective finger 16 in juxtaposition with the step insets 17, 18 of the hammer and, respectively, of the yoke.

What is claimed is:

1. Safety device for revolvers having a yoke, a hammer with an upper notch, and a trigger with a blocking tooth, said upper notch engaging said blocking tooth, which comprises:

(a) a pivotable lever positioned within said hammer;

(b) a spring-loaded piston located within said hammer and acting upon said lever;

(c) a pusher positioned within said hammer, controlling the movement of said lever and cooperating with said blocking tooth; and

(d) a terminal finger provided on said lever and posi- 4 tionable, due to the pivoting of said lever, between I References Cited said hammer and the back face of said yoke. UNITED STATES PATENTS I 2. The safety device of claim 1, wherein on the body 609 233 8/1898 H h 42 66 of said hammer and on the back face of said yoke there 818721 4/1906 ton are rovided, opposite to each other, two step insets for 5 961189 6/1910 22 42:66 calving mmmal finger- 1,122:635 12/1914 Pomeroy 42-436 3. The safety device of claim 1, wherein said lever is actuated, by means of the said pusher, by said blocking BENJAMIN BORCHELT Primary Examiner tooth of said trigger, so as to effect the required angular displacements and to position said terminal finger between 10 JORDAN, Assistant EXammef said hammer and said back face of said yoke. 

